﻿using System.Threading;
using DM4;
using sscore;
using System;
using System.Collections.Generic;
using sscore.Utils;
using System.Text.RegularExpressions;
using System.Net;
using sscore.Requests;

namespace ID
{
    public class ID : ModuleBase
    {
        private readonly string _searchUrl;
        private readonly string _offenderLink;
        private readonly string _imageLink;
        private const string StateName = "ID";
        private ResultFile _imagesResultFile;

        private readonly String[] _counties = { 
               "ADA","ADAMS","BANNOCK","BEAR LAKE","BENEWAH","BINGHAM","BLAINE","BOISE","BONNER","BONNEVILLE",
               "BOUNDARY","BUTTE","CAMAS","CANYON","CARIBOU","CASSIA","CLARK","CLEARWATER","CUSTER","ELMORE",
               "FRANKLIN","FREMONT","GEM","GOODING","IDAHO","JEFFERSON","JEROME","KOOTENAI","LATAH","LEMHI",
               "LEWIS","LINCOLN","MADISON","MINIDOKA","NEZ PERCE","ONEIDA","OWYHEE","PAYETTE","POWER","SHOSHONE",
               "TETON","TWIN FALLS","VALLEY","WASHINGTON"
                };
        private readonly String[] _offendersDBs = { "A", "J" };
        private const string LastOffendersDb = "LastOffendersDB";

        public ID()
        {
            //initialize main system constants
            ModuleCode = "SO_ID";
            Description = "ID Sex Offenders";
            Version = "1.0";

            //for creating sessions
            StartParam = 0;
            StopParam = _counties.Length - 1;

            //initialize help 
            AddToHelp(DM4Consts.StartPosition, String.Format("{0}...{1}", StartParam, StopParam));
            AddToHelp(DM4Consts.EndPositon, String.Format("{0}...{1}", StartParam, StopParam));

            AddToHelp(DM4Consts.IsDownload, "true|false");
            AddToHelp(DM4Consts.IsDownloadImg, "true|false");
            AddToHelp(DM4Consts.InsertToDb, "false|true", "(Expected: servername, dbname)");
            AddToHelp(DM4Consts.ServerName, "");
            AddToHelp(DM4Consts.DbName, "");
            AddToHelp(DM4Consts.IsClearDb, "false|true");
            AddToHelp(DM4Consts.TestParam, "false|true");

            Rpm.Codepage = EncodingType.Iso88591;
            RootUrl = "http://www.isp.idaho.gov/";
            _searchUrl = String.Format("{0}sor_id/SOR?form=4&cnt={{0}}&rad={{1}}&srt=1&sz=1280&page={{2}}", RootUrl);
            _offenderLink = String.Format("{0}sor_id/SOR?id={{0}}&sz=1416", RootUrl);
            _imageLink = String.Format("{0}sor_id/photos/{{0}}.jpg", RootUrl);
        }

        private void SetParametersDefaults()
        {
            Params.CreateBooleanParam(DM4Consts.IsDownload, true);
            Params.CreateBooleanParam(DM4Consts.IsDownloadImg, true);
            Params.CreateBooleanParam(DM4Consts.InsertToDb, false);
            Params.CreateBooleanParam(DM4Consts.IsClearDb, false);
            Params.CreateStringParam(DM4Consts.DbName, "");
            Params.CreateStringParam(DM4Consts.ServerName, "");
            Params.CreateIntegerParam(DM4Consts.StartPosition, StartParam);
            Params.CreateIntegerParam(DM4Consts.LastPosition, Params.GetIntegerParam(DmConsts.StartPosition));
            Params.CreateIntegerParam(DM4Consts.EndPositon, StopParam);
            Params.CreateIntegerParam(LastOffendersDb, 0);
            Params.CreateIntegerParam(DM4Consts.LastRecord, 0);
            Params.CreateIntegerParam(DmConsts.LastPage, 1);
        }

        public override OperationResult Init(IDM4Core iCore, DmTaskParams param)
        {
            //use basic initialization sequence
            base.Init(iCore, param);

            SetParametersDefaults();
            return new OperationResult { Result = DM4Consts.Ok };
        }

        public override OperationResult Start()
        {
            DoWork();
            return new OperationResult { Result = DM4Consts.Ok };
        }

        public override OperationResult DoWork()
        {
            OperationResult or = new OperationResult { Result = DM4Consts.ErrorUnknown };

            if (!Ct.IsCancellationRequested)
            {
                WriteLog("Start parameters:", MessageType.Warning);
                foreach (KeyValuePair<string, string> kvp in Params.GetDictionary()) //get all existing parameters
                    WriteLog(String.Format("Key = {0}, Value = {1}", kvp.Key, kvp.Value), MessageType.Warning);

                if (Params.GetBooleanParam(DM4Consts.IsDownload))
                    Load();

                if (Params.GetBooleanParam(DM4Consts.InsertToDb))
                    if ((Params.GetStringParam(DM4Consts.DbName) == "") || (Params.GetStringParam(DM4Consts.ServerName) == ""))
                    {
                        or.Message = String.Format("{0} or {1} is empty", DM4Consts.DbName, DM4Consts.ServerName);
                        ResultCode = DM4Consts.SessionResultCodeError;
                        ResultMessage = or.Message;
                        UpdateStatus(DmConsts.Error);
                        WriteErrorLog(or.Message); //writting to error and session log   

                        return or;
                    }
                    else
                    {
                        //insert offenders to db 
                        UpdateStatus(DM4Consts.SessionInsertToDb);

                        Offenders.OffInsertToDatabase(StateName, Params.GetStringParam(DmConsts.DbName),
                             Params.GetStringParam(DmConsts.ServerName), ResultDir, Params.GetBooleanParam(DmConsts.IsClearDb),
                             WriteLog);

                    }

                //check if need abort task
                if (Ct.IsCancellationRequested)
                {
                    ResultCode = DM4Consts.SessionResultTerminateByUser;
                    ResultMessage = "Session terminated by user";
                    UpdateStatus(DM4Consts.SessionWait);
                    WriteLog("Session aborted by user", MessageType.Cool);
                }
                else
                {
                    UpdateProgress(1);
                    ResultCode = DM4Consts.SessionResultCodeOk;
                    ResultMessage = String.Format("Session complete, errors : {0}, records : {1}", TaskParams.ErrorCount, TaskParams.RecordCount);
                    UpdateStatus(DM4Consts.SessionComplete);
                    WriteLog("------------Finish----------------", MessageType.Cool);
                }
            }
            else
            {
                ResultCode = DM4Consts.SessionResultTerminateByUser;
                ResultMessage = "Session terminated by user";
                UpdateStatus(DM4Consts.SessionWait);
                WriteLog("Session aborted by user", MessageType.Cool);
            }


            return or;
        }

        private void Load()
        {
            string resultFileName = String.Format("{0}\\{1}.{2}", ResultDir, TaskParams.SessionId, DmConsts.ResultFilesExtension);
            bool workFlag = true;

            ResultFile = new ResultFile(resultFileName, OffendersResult.GetHeader());
            _imagesResultFile = new ResultFile(String.Format("{0}\\{1}_images.{2}", ResultDir, TaskParams.SessionId, DM4Consts.ResultFilesExtension), "FileName|FileUrl");
            try
            {
                while (workFlag)
                {
                    //рабочий цикл
                    string error;

                    try
                    {
                        error = "";  //Required!!  /*if (!String.IsNullOrEmpty(error)) --> restart thread; else --> download finished*/

                        WriteLog("Start download...");
                        Searching();
                    }
                    catch (Exception e)
                    {
                        error = e.Message;
                    }

                    if (!String.IsNullOrEmpty(error))
                    {
                        Thread.Sleep(30000);
                        WriteErrorLog(error);
                        WriteLog("Try continue work...", MessageType.Warning);
                    }
                    else
                    {
                        workFlag = false;  //все нормально откачало, заканчиваем работу
                    }
                }
            }
            finally
            {
                ResultFile.Close();
                _imagesResultFile.Close();
            }
        }

        private void Searching()
        {
            if (Test)
            {
                Params.SetIntegerParam(DmConsts.LastPosition, Params.GetIntegerParam(DmConsts.StartPosition));
                Params.SetIntegerParam(DmConsts.EndPositon, Params.GetIntegerParam(DmConsts.StartPosition));
            }

            if (Params.GetIntegerParam(DmConsts.EndPositon) > StopParam)
                Params.SetIntegerParam(DmConsts.EndPositon, StopParam);

            for (int indSearchParam = Params.GetIntegerParam(DmConsts.LastPosition); indSearchParam <= Params.GetIntegerParam(DmConsts.EndPositon); indSearchParam++)
            {
                //check if need abort task
                if (Ct.IsCancellationRequested)
                    break;

                Params.SetIntegerParam(DmConsts.LastPosition, indSearchParam);
                UpdateProgress();

                for (int iOffDb = Params.GetIntegerParam(LastOffendersDb); iOffDb < _offendersDBs.Length; iOffDb++)
                {
                    if (Ct.IsCancellationRequested)
                        break;

                    Params.SetIntegerParam(LastOffendersDb, iOffDb);
                    NavigateByPage();
                }//for (int iOffDB = FOffendersDB; iOffDB < OffendersDBs.Length; iOffDB++)
                Params.SetIntegerParam(LastOffendersDb, 0);
            }
        }

        private void NavigateByPage()
        {
            do
            {
                if (Ct.IsCancellationRequested)
                    break;

                WriteLog(String.Format("start processing county  [{0}][{1}]; Offenders DB [{2}][{3}]; page [{4}] ",
                    Params.GetIntegerParam(DmConsts.LastPosition),
                    _counties[Params.GetIntegerParam(DmConsts.LastPosition)],
                    Params.GetIntegerParam(LastOffendersDb),
                    _offendersDBs[Params.GetIntegerParam(LastOffendersDb)],
                    Params.GetIntegerParam(DmConsts.LastPage)));

                string html = GetRequest.UrlOnly(string.Format(_searchUrl,
                        _counties[Params.GetIntegerParam(DmConsts.LastPosition)],
                        _offendersDBs[Params.GetIntegerParam(LastOffendersDb)],
                        Params.GetIntegerParam(DmConsts.LastPage)).Replace(" ", "%20"),
                    Rpm);

                if (!RegExpr.IsMatch(html, @"(?si:IDAHO\s*SOR\s*-\s*search\s*results)"))
                    throw new Exception(DmConsts.ExcNeedRestart);

                html = HtmlUtils.KillSpace(HtmlUtils.ReplaceSpecSymbols(html.Replace("\r\n", " ").Replace("\t", " ").Replace("\r", " ").Replace("\n", " ")));
                ParseResultPage(html);

                if (RegExpr.IsMatch(html, @"(?si:>\s*Next\s*>\s*>\s*<)"))
                    Params.SetIntegerParam(DmConsts.LastPage, Params.GetIntegerParam(DmConsts.LastPage) + 1);
                else
                    break;
            }
            while (true);
            Params.SetIntegerParam(DmConsts.LastPage, 1);
        }

        private void ParseResultPage(string html)
        {
            MatchCollection mc = RegExpr.ParseMatchCollection(html, @"(?si:<a href=""SOR\?id=([\d]+)\&sz=([\d]+)"")");
            WriteLog(String.Format("found [{0}] matches", mc.Count));
            if (mc.Count == 0)
                throw new Exception(DmConsts.ExcNeedRestart + Environment.NewLine + html);

            List<string> list = new List<string>();

            foreach (Match matchLoc in mc)
                if (!list.Contains(matchLoc.Groups[1].Value))
                    list.Add(matchLoc.Groups[1].Value);

            WriteLog(String.Format("found [{0}] id[s]", list.Count));

            for (int i = Params.GetIntegerParam(DmConsts.LastRecord); i < list.Count; i++)
            {
                //check if need abort task
                if (Ct.IsCancellationRequested)
                    break;

                Params.SetIntegerParam(DmConsts.LastRecord, i);
                string lookupKey = list[i];
                string offenderHtml = GetRequest.WithCookies(string.Format(_offenderLink, lookupKey), Rpm);
                WriteLog(String.Format("ParseOffender [{0}][{1}]", Params.GetIntegerParam(DmConsts.LastRecord), lookupKey));

                if (!RegExpr.IsMatch(offenderHtml, @"(?si:IDAHO SOR - offender profile)"))
                    throw new Exception("Offenders page:" + DmConsts.ExcNeedRestart);

                ParseOffender(offenderHtml, lookupKey);
                UpdateRecordCount(1);

            }
            Params.SetIntegerParam(DmConsts.LastRecord, 0);
        }

        private void ParseOffender(string offenderHtml, string lookupKey)
        {
            offenderHtml = HtmlUtils.KillSpace(HtmlUtils.ReplaceSpecSymbols(offenderHtml.Replace("\r\n", " ").Replace("\t", " ").Replace("\r", " ")));
            using (OffendersResult or = new OffendersResult())
            {
                or.Source_State = StateName;
                or.offenderLink = string.Format(_offenderLink, lookupKey);
                or.Source_id = lookupKey;

                if (Params.GetBooleanParam(DmConsts.IsDownloadImg))
                {
                    int iImg = 0;
                    MatchCollection mcImg = RegExpr.ParseMatchCollection(offenderHtml, @"(?si:src=""photos/([\S]+).jpg"")");
                    if (mcImg.Count > 0)
                        foreach (Match m in mcImg)
                        {
                            string imgName;
                            if (iImg == 0)
                            {
                                or.Image_ID = Guid.NewGuid().ToString();
                                or.ImageLink = string.Format(_imageLink, m.Groups[1].Value);
                                imgName = String.Format("{0}\\{1}\\{2}.jpg", ResultDir, DmConsts.PhotosDir, or.Image_ID);
                            }
                            else
                                imgName = String.Format("{0}\\{1}\\{2}_{3}.jpg", ResultDir, DmConsts.PhotosDir, or.Image_ID, iImg);

                            try
                            {
                                Offenders.DownloadImageWithExceptions(_imagesResultFile, imgName, string.Format(_imageLink, m.Groups[1].Value), TaskParams.SessionId);
                            }
                            catch (WebException ex)
                            {
                                if (((HttpWebResponse)ex.Response).StatusCode != HttpStatusCode.NotFound)
                                    throw new Exception(DmConsts.ExcInvalidLoadingImage, ex);
                            }

                            iImg++;
                        }//foreach (Match m in mcImg)
                }//if (Params.GetBooleanParam(DmConsts.IsDownloadImg))
                if (or.Image_ID != "") or.Image_ID += ".jpg";

                offenderHtml = HtmlUtils.KillSpace(RegExpUtils.DeleteTag(offenderHtml.Replace("&#160;", " ").Replace("<br />", "@")
                    , "(?:face|size|rowspan|target|bgcolor|style|border|src|alt|href|rel|color|width|onclick|id|align|nowrap|valign|cellspacing|cellpadding|class|title|colspan|height|bordercolor|img|headers)")).Trim();

                or.Source_id = RegExpr.Parse(offenderHtml, @"(?si:Reg ID:</td>\s*<td>(.*?)</td>)").Trim();
                or.fullname = RegExpr.Parse(offenderHtml, @"(?si:Name:</td>\s*<td>(.*?)</td>)").Trim();

                foreach (Match matchLoc in RegExpr.ParseMatchCollection(RegExpr.Parse(offenderHtml, @"(?si:Alias:\s*</td>\s*<td>\s*<table>\s*<tr>(.*?)</table>)")
                    , "(?si:<td>(.*?)</td>)"))
                    if (matchLoc.Groups[1].Value.Trim() != "")
                        or.AKA += String.Format("{0};", matchLoc.Groups[1].Value.Trim());

                if (or.AKA == "")
                    foreach (Match matchLoc in RegExpr.ParseMatchCollection(RegExpr.Parse(offenderHtml, @"(?si:Aliases:\s*</td>\s*<td>\s*<table>\s*<tr>(.*?)</table>)")
                    , "(?si:<td>(.*?)</td>)"))
                        if (matchLoc.Groups[1].Value.Trim() != "")
                            or.AKA += String.Format("{0};", matchLoc.Groups[1].Value.Trim());

                or.Address = RegExpr.Parse(offenderHtml, @"(?si:\s+Address\s*<tr>\s*<td>\s*<TABLE>\s*<tr>\s*<td>(.*?)A map of this)").Trim();
                or.Address = HtmlUtils.KillSpace(or.Address);

                or.Birthdate = RegExpr.Parse(offenderHtml, @"(?si:Birth\s*Date:</td>\s*<td>(.*?)</td>)").Trim();
                or.Ethnicity = RegExpr.Parse(offenderHtml, @"(?si:Race:\s*</td>\s*<td>(.*?)</td>)").Trim();
                or.eye_color = RegExpr.Parse(offenderHtml, @"(?si:Eye\s*Color:\s*</td>\s*<td>(.*?)</td>)").Trim();
                or.hair_color = RegExpr.Parse(offenderHtml, @"(?si:Hair\s*Color:\s*</td>\s*<td>(.*?)</td>)").Trim();
                or.height = RegExpr.Parse(offenderHtml, @"(?si:Height:\s*</td>\s*<td>(.*?)</td>)").Trim();
                or.weight = RegExpr.Parse(offenderHtml, @"(?si:Weight:\s*</td>\s*<td>(.*?)</td>)").Trim();
                or.sex = RegExpr.Parse(offenderHtml, @"(?si:Sex:\s*</td>\s*<td>(.*?)</td>)").Trim();
                or.registered = RegExpr.Parse(offenderHtml, @"(?si:Last\s*Registered:\s*<td>(.*?)</td>)").Trim();
                or.Status = RegExpr.Parse(offenderHtml, @"(?si:Reg\s*Status:\s*<td>(.*?)</td>)").Trim();
                //Place of Conviction </tr><tr><td><TABLE><tr>

                const string crimeCaption = "Offense; Description; Date; Place of conviction~";
                MatchCollection mc = RegExpr.ParseMatchCollection(RegExpr.Parse(offenderHtml, @"(?si:Place of Conviction\s*</tr>\s*<tr>\s*<td>\s*<TABLE>\s*<tr>(.*?)</TABLE>)")
                   , "(?si:<td>(.*?)</td>)");
                if (mc.Count > 0)
                {
                    or.Crime = crimeCaption + or.Crime;
                    for (int i = 0; i <= 2; i++)
                    {
                        try { or.Crime += String.Format("{0};", mc[i].Groups[1].Value.Trim()); }
                        catch { or.Crime += ";"; }
                    }   
                    try { or.Crime += String.Format("{0}~", mc[3].Groups[1].Value.Trim()); }
                    catch { or.Crime += "~"; }
                }

                ResultFile.Write(or.GetValues());
            }
        }

        private void UpdateProgress()
        {
            if (Params.GetIntegerParam(DmConsts.StartPosition) > Params.GetIntegerParam(DmConsts.EndPositon))
                throw new Exception(String.Format("Invalid parameters {2}[{0}]; {3} [{1}]",
                    Params.GetIntegerParam(DmConsts.StartPosition), Params.GetIntegerParam(DmConsts.EndPositon),
                    DmConsts.StartPosition, DmConsts.EndPositon));
            if (Params.GetIntegerParam(DmConsts.LastPosition) > Params.GetIntegerParam(DmConsts.EndPositon))
                throw new Exception(String.Format("Invalid parameters {2}[{0}]; {3} [{1}]",
                    Params.GetIntegerParam(DmConsts.LastPosition), Params.GetIntegerParam(DmConsts.EndPositon),
                    DmConsts.StartPosition, DmConsts.EndPositon));
            if (Params.GetIntegerParam(DmConsts.StartPosition) > Params.GetIntegerParam(DmConsts.LastPosition))
                throw new Exception(String.Format("Invalid parameters {2}[{0}]; {3} [{1}]",
                    Params.GetIntegerParam(DmConsts.StartPosition), Params.GetIntegerParam(DmConsts.LastPosition),
                    DmConsts.StartPosition, DmConsts.LastPosition));
            UpdateProgress(((double)(Params.GetIntegerParam(DmConsts.LastPosition) - Params.GetIntegerParam(DmConsts.StartPosition))) / (Params.GetIntegerParam(DmConsts.EndPositon) - Params.GetIntegerParam(DmConsts.StartPosition) + 1));
        }
    }
}
